Hey Ray! Using Pi to Properly Buy Pizza
Remember that one time in math class when you said, "I am never going to use this in real life"?
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Remember that one time in math class when you said, "I am never going to use this in real life"?
Pittsburgh has a lot of bridges -- 446 of them! With bridges, there are additional things to be alert for in colder weather, such as ice.
Late in winter, people usually start looking for signs that spring is on the way. The most popular is Punxsutawney Phil. The groundhog isn't the only animal though.
We have talked about how each snowfall is different. How snow is created is different, too.
The hardest season to predict weather is winter, mainly because of snow.
The Moon is neat to watch because it has several different looks during its 27 day cycle. It sometimes looks like a fingernail. Other times it looks like half of a pie, and other times it is a bright, shiny disk in the sky.
Often, I get asked, "Why are you called a meteorologist when you study and predict weather, not meteors?"
The term "polar vortex" may sound like a cold version of a "sharknado", but unlike a sharknado, the polar vortex is a real, meteorological thing.
Standing on Earth and looking out, the Earth looks flat from our very limited view. We know the Earth isn't flat, though. Did you know Earth isn't a perfect sphere either?
After a snowfall, we all like to brag about how much fell, so it is important to measure snow properly. While it sounds like an easy task, you must follow some rules.
Unlike a certain popular television show, we know that winter is coming and exactly when it will get here.
You may have heard about the Christmas Star that will become visible in the December sky. What is it, how rare is it, and how do you see this "star"? Meteorologist Ray Petelin has the answers.
When it comes to thunderstorms, can you really tell how far away a storm is by counting the seconds between the flash of lightning and the rumble of thunder? The answer is yes, but there's a little more to it.
KDKA meteorologist Ray Petelin explores the science behind gravity with slow-motion and a slinky.
When the air in your house gets dry, you may notice you get shocked when touching door knobs, and your hair goes crazy when you take off a sweater.
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
When we get large snowfalls, the same question gets asked - why is snow white but when it melts, it's clear? Ray Petelin answers that in a new Hey Ray!
KDKA meteorologist Ray Petelin uses science to debunk some popular conspiracy theories.
Places, people, and things have a variety of reasons for why they are named the way they are, but have you ever thought about why the Arctic and Antarctic have their names? Ray Petelin has and he explains it in a new Hey Ray!
Whenever snow falls in Pittsburgh, you hear the same refrain: milk, bread, and toilet paper, but do we really need to have those in our home? Ray Petelin makes sure you know how to prepare when snow is coming!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Every generation when they get older love to brag about how much snow they had to deal with as a kid, but which Pittsburgh generation has the bragging rights? Ray Petelin breaks it down!
Did you ever notice your breath can heat and cool things? Meteorologist Ray Petelin shows us the science of how that works!
You certainly know the dark color of pop, but did you know you can use milk to take the color out of it? Ray Petelin shows you the science in a new Hey Ray!
A video shows a rat running around the beer taps at The Urban Tap, a bar on Pittsburgh's South Side.
Seven men pleaded guilty on Monday to a series of robberies perpetrated at Pennsylvania highway rest stops in several counties.
A demolition project in Washington County had a fright on Tuesday morning as a piece of heavy equipment fell into a hole.
The annual KDKA Fish Fry Guide is back for Lent! Check our listings for a 2026 fish fry near you in Pittsburgh.
An Indiana County woman is facing charges after police said a dog with two pelvis fractures and several chicken bones in its stomach was found abandoned on the side of the road.
President Trump said he expects the bombing campaign to last four to five weeks, but "we have [the] capability to go far longer than that."
"Sadly, there will likely be more before it ends. That's the way it is. Likely be more," President Trump said after mentioning the three U.S. service members killed in the operation.
President Trump posted on social media that Iranian Supreme Leader Ayatollah Ali Khamenei had been killed after a massive U.S. and Israeli military operation Saturday.
Americans weighed in on how long a conflict with Iran might last and what Congress should do.
Early on Saturday, the U.S. and Israel launched a military operation in Iran, and Pennsylvania's elected officials have responded.
There are always deals to be had at places like Sam's Club and TJ Maxx, but there are ways to get even bigger discounts.
Ollie's Bargain Outlet in Greensburg has temporarily closed after the Pennsylvania Department of Agriculture found a rodent infestation this week.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
Each year, the American Customer Satisfaction Index releases its survey of supermarkets, and several Pittsburgh grocers got high marks.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
Chef Crystal Baldwin is here to spice things up with a flavorful Moroccan salmon that might just become your new Friday tradition.
Pittsburgh’s past is coming to life with a swirl of cocktails, the hum of live music, and the delicious aroma of local bites! Daisy Jade was live at the Heinz History Center with a sneak peek.
PTL hosts Heather Abraham and David Highfield discuss Pittsburgh culture, trending news and social media, food, sports, and more.
Antiques appraiser Dr. Lori is examining more of your family treasures and heirlooms.
Bubba from 100.7 STAR joins PTL for another edition of Pop Talk Live!
From freshly washed cars to air conditioning units to entire porches, dust is blanketing one Westmoreland County neighborhood.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
The Woodland Hills school board has been a lightning rod of controversy since putting Superintendent Joe Maluchnik on administrative leave three months ago.
Almost suddenly, Allegheny County has seen a dramatic drop in the number of people dying.
News organizations in the Pittsburgh area are coming together to help each other survive.
Fish fries can be a quandary for people with heart and other medical issues.
With a measles outbreak in Pennsylvania, local health experts want to send a message to families.
Cracking down on the price of prescription drugs is a hefty task.
The advisory, issued on Saturday, affected thousands of customers in Allegheny and Washington counties.
Pennsylvania American Water said that a first round of testing came back negative and an update can be expected late Monday morning.
Pittsburgh has fired women's basketball coach Tory Verdi.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
Pitt's season didn't end the way they wanted it to last year but Mason Heintschel said he's excited to take the next step in his second year with the team.
Bryan Rust, Ben Kindel and Justin Brazeau each had a goal and an assist, helping the Pittsburgh Penguins beat the Vegas Golden Knights 5-0.
A majority of Steelers fans want the team to move on from Aaron Rodgers and remain divided over the hiring of Mike McCarthy.
A fire chief says a fire at an Ohio hog farm complex has killed about 6,000 pigs and unleashed a large plume of smoke that could be seen for miles.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
The budget airline Breeze is launching a new nonstop route from Pittsburgh to Myrtle Beach this summer.
The lawsuit accuses Nippon of prioritizing revenue over worker safety.
West Virginia took a major step in the fight against child pornography Thursday, after the state filed a first lawsuit of its kind against Apple.
The countdown is on, as the NFL Draft comes to Pittsburgh and America turns 250 years old.
Hillary Knight, Megan Keller and Jack and Quinn Hughes made a surprise appearance during "Heated Rivalry" star Connor Storrie's opening monologue on "SNL."
The medical drama "The Pitt" has certainly put a lot of eyes on Pittsburgh, and while the stories are fiction, the show highlights some very real things about the city.
Streaming giant Netflix declined to match Paramount Skydance's $31 per share offer for Warner Bros. Discovery.
A Romanian court on Thursday rejected an appeal by American rapper Wiz Khalifa to annul his nine-month jail sentence handed down for drug possession.
Golfers are ready to get back to work.
Federal authorities are now involved in the investigation into unauthorized hate messages broadcast over local police radio, including a threat to Pittsburgh Mayor Corey O'Connor's life.
A video shows a rat running around the beer taps at The Urban Tap, a bar on Pittsburgh's South Side.
Seven men pleaded guilty on Monday to a series of robberies perpetrated at Pennsylvania highway rest stops in several counties. KDKA-TV's Chris DeRose has more.
A demolition project in Washington County had a fright on Tuesday morning as a piece of heavy equipment fell into a hole. KDKA-TV's Chris Hoffman reports.
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
